GROUND ENHANCE MATERIAL ( GEM )

GROUND ENHANCE MATERIAL (GEM)

Leiying's Earthing Compound have passed the test by Wuhan High Voltage Research Institute, the most authoritative test lab in China. Please see another attached document which test report in Chinese Only.It was used as an earth-electrode backfill to reduce soil resistivity by retaining moisture. The clay consists largely of Ca-Bentonite, It has the ability to hold its moisture content for a considerable period of time and to absorb moisture from the surrounding soil (e.g. from rainfall). This product have high anti-erode that can be protect the earth-electrode ( copper bonded steel earth rod, chemical earth rods , earth conductors etc). It does not pollute surrounding soil.

We supplied 25kgs per bag with waterproof and moisture-proof packing.

Product item No.	Packing	Description& Marks
LYJZ-1	25KGS/Bag	It is mixed with Ca-Bentonite, Flake Graphite Powder, Sodium Carbonate, Coal Powder & Carbon Powder

Performance characteristic 1) As it has low Resistivity, high water absorption and water holding performance, it is good and stable in resistance reduction
2) As it is good in corrosion resistance and stability, it is well in protection of grounding network, so it can be working effectively for a long time
3) It is not only work well in small, in medium size and in large grounding networks as reducing resistance, but also it can be good in corrosion resistance and uniform pressure
4) Earthing compound is verified as no pollution in the process of reducing resistance and no harm to human body after checked strictly by environmental department for manufacturing process, operations, sample and applications etc.
5) After this earth compound is be applied around earth-electrodes, it is equal to increase the effective cross section of grounding units for resistance reduction, so it functions well in the aspect of pressure reduction and reduce the step voltage and contact voltage from equipment.

Test Report Translation
No.	TEST ITEM	TEST STANDARD	TEST RESULT	CONCLUTION
1	Resistance test in room temperature	P ≤5M.m	p＝0.29Ω.m	Up to standard
2	Physical & chemical performance 1)dehydration test (2)cold and heat cycling (3)water dipping	p＝0.29Ω.m	P＝0.34Ω.mp＝0.31Ω.m p＝0.43Ω.m	Up to standard
3	Impact electric current tolerance	ΔR%≤20%	ΔR%≤5.71%	Up to standard
4	Working frequency electric current tolerance	ΔR%≤20%	ΔR%≤5.71%	Up to standard
5	PH value measurement	7-12	9.5	Up to standard
6	Corrosion test from earth compound to steel earth-electrode(1)corrosion test from pure earth compound to steel earth-electrode(2)corrosion test to steel earth-electrodes when rooted in ground	Surface average corrosion rate≤0.03mm/a Average corrosion≤0.05mm/a	0.0019-0.0034mm/a 0.0017-0.0022mm/a	Up to standard
7	Stability test for resistance reducing performance	After included with climate influence Rjmax/Rj≤1.5		Up to standard
Notes: Test item, standard and result for earthing compound in ground